JP6534517B2 - Sample container support device - Google Patents

Description

  The present invention relates to a sample container support apparatus, and more particularly to a sample container support apparatus for gripping and fixing various sample containers such as an experimental reaction container having a flange protruding from the periphery of an upper opening at an arbitrary position.

  Conventionally, in a sample container supporting apparatus that holds a sample container such as a reaction container, beaker, or flask and fixes it at an arbitrary position, a clamp unit that holds and holds the neck of the sample container is held by a stand via a support rod. The holder is attached to the support of the stand so as to be movable up and down via the first fixing bolt and can be pivoted, and the base end side of the support bar with the clamp portion attached to the tip is The fixed position of the sample container was adjusted by movably connecting in the front-rear direction via a fixing bolt and operating the first fixing bolt and the second fixing bolt (for example, see Patent Document 1).

JP 2001-205112 A

  However, in the above-mentioned Patent Document 1, the first fixing bolt and the second fixing bolt are operated at the position of the column of the stand away from the position of the sample container to adjust the position and the direction of the support bar. Since the sample container is arranged and fixed at a predetermined position, it takes time to adjust the position. In addition, the first fixing bolt and the second fixing bolt protrude in different directions of the support column, and in a narrow space, there is a restriction in the position where the stand is arranged. Furthermore, the above-mentioned clamp part once opens the clamp part and inserts the sample container between the clamp parts, then closes the clamp part again and grips the sample container across the neck of the sample container. It took time to hold. In addition, since the clamp portion holds the neck portion of the sample container with a predetermined holding force, a flexible material such as resin or rubber is attached to the holding surface to prevent damage to the sample container. Not suitable for use below.

  Therefore, according to the present invention, the position adjustment of the sample container can be easily performed near the clamp portion that holds the sample container, and the sample container can be easily grasped by the clamp portion, and the use under high temperature is also possible. It aims at providing a sample container support device.

  In order to achieve the above object, the sample container support apparatus of the present invention comprises a clamp unit for supporting a sample container having a flange projecting from the periphery of an upper opening, and a support unit for supporting the clamp unit. In the supporting device, the supporting portion holds the hinge shaft arranged in the vertical direction so as to be rotatable and movable up and down around the axis of the hinge shaft, and restricts the rotation and the up and down movement of the hinge shaft. And a horizontal support bar member having a hinge shaft holding member provided with a fixing means for fixing the hinge shaft, the clamp portion having a pair of crank arms formed by bending a strip-like metal plate; The base end of the crank arm is fixed to the lower end of the hinge shaft, and the base end of the other crank arm is rotatably mounted on the lower end of the hinge shaft so that both crank arms are identical. Horizontally at height The base of the both crank arms is formed so as to be closeable, and provided with biasing means for biasing the both crank arms in the opening direction, and tightening means for operating the both crank arms in the closing direction. When the outer peripheral surface of the sample container is held by both crank arms, it becomes a polygonal shape circumscribing the outer peripheral surface of the sample container, and the upper edge portion of the crank arm in a portion corresponding to a plurality of sides of the polygonal shape A flange receiving piece extending outward in the horizontal direction is respectively formed, and a strip-like metal plate is bent so as to be elastically deformable in portions corresponding to a plurality of apexes of the polygonal shape except the tip end portion of the crank arm It is preferable that the bent portions are formed, and that the polygonal shape is a square shape.

  According to the sample container support device of the present invention, the sample held by the clamp unit can be adjusted by the hinge shaft holding member disposed in the vicinity of the sample container because the rotation and vertical movement of the hinge shaft attached with the clamp unit can be adjusted. The position where the sample container is fixed can be easily adjusted at a position close to the container. In addition, since the hinge shaft holding member can be provided on the distal end side of the support rod member, when supporting the base end side of the support rod member on, for example, a stand, the circumference of the stand can be made compact; Can be placed in a narrow space.

  In addition, the sample container is inserted into the inside of both crank arms while elastically deforming the bent portion from the tip end of the pair of crank arms, or is inserted into the inside of both crank arms from above the pair of crank arms. The sample container can be held easily and reliably by the crank arms by adjusting the opening degree of both crank arms by the tightening means. In addition, since the flange piece can receive the flange portion of the sample container to hold the sample container, and a strong gripping force is not required for the crank arm, the crank arm is formed of a single strip metal plate, thereby reducing the cost. In addition, since it is not necessary to attach a flexible material such as resin or rubber to the holding surface, it can be used at high temperatures.

It is a principal part cross section side view of a sample container support device showing an embodiment of the present invention. It is principal part cross-sectional top view of a sample container support apparatus similarly. It is explanatory drawing of a sample container support apparatus and reaction container similarly. It is a top view of a sample container support apparatus similarly. It is a perspective view of a sample container support apparatus similarly. It is a perspective view of the sample container support apparatus of the state which hold | gripped the reaction container similarly. It is explanatory drawing of the state which arrange | positioned the reaction container similarly similarly supported by the sample container support apparatus to the thermostat.

  FIGS. 1 to 7 show an embodiment of the present invention, and the sample container support apparatus 11 of this embodiment is, for example, a constant temperature water tank of a bottle-shaped reaction container 31 (sample container of the present invention) containing a sample. It is used when arranged and fixed at 41, and it comprises a clamp part 12 for holding the reaction container 31 and a support part 13 for arranging the clamp part 12 in the constant temperature water tank 41 and fixing it at a predetermined position. ing.

  The support portion 13 includes a hinge shaft 14 disposed in the vertical direction, a horizontal support bar member 15 rotatably holding the hinge shaft 14 and capable of moving up and down, and rotation and up and down movement of the hinge shaft 14. And a hinge shaft holding member 16 for fixing the hinge shaft 14 at a predetermined position.

  The support rod member 15 has a large diameter member 17 mounted at its tip, and a shaft mounting hole 18 perpendicular to the axis of the support rod member 15 is vertically penetrated, and the hinge shaft 14 is formed in the shaft mounting hole 18. The hinge shaft 14 is inserted so as to be rotatable about its axis and movable up and down. The large diameter member 17 is formed with a female screw hole 19 which is opened to the outer surface of the large diameter member 17 and the shaft mounting hole 18 and is formed in a direction perpendicular to the shaft mounting hole 18. The shaft holding member 16 is screwed.

  The hinge shaft 14 is formed smaller in diameter than the inner diameter of the shaft mounting hole 18, the retaining clip 20 larger in diameter than the shaft mounting hole 18 is fitted at the upper end, and the clamp 12 is connected at the lower end. Be done. The hinge shaft holding member 16 includes a male screw 16a screwed into the female screw hole 19, and a piece 16b provided at the outer end of the male screw 16a for rotating the male screw 16a. The tip of the male screw 16a is It projects into the shaft mounting hole 18.

  The clamp portion 12 has a first crank arm 21 and a second crank arm 22 formed by bending a strip-like metal plate, and the first crank arm 21 has a first attachment portion 21 a provided at the base end portion, A first projecting piece 21b formed continuously to the first mounting portion 21a and a first crank 21c that protrudes from the first projecting piece 21b and holds the reaction container 31 are provided. The first attachment portion 21 a is formed by bending the base end portion of the first crank arm 21 in an L shape, and the first attachment portion 21 a is attached to the peripheral wall of the hinge shaft 14 with a screw 23. The crank arm 21 is fixed to the hinge shaft 14.

  The second crank arm 22 projects from a second mounting portion 22 a provided at the base end, a second projecting piece 22 b continuously formed on the second mounting portion 22 a, and the second projecting piece 22 b, and the reaction container 31. And a second crank 22c for holding the The second mounting portion 22a covers the upper and lower surfaces of the first mounting portion 21a, and has a pair of hinge shaft insertion pieces 22e and 22e each having a shaft insertion hole 22d rotatably inserted in the hinge shaft 14. And a connecting piece 22f for connecting the hinge shaft insertion pieces 22e and 22e outside the other side wall of the hinge shaft 14, and the second crank is inserted by inserting the hinge shaft 14 into the shaft insertion holes 22d and 22d. An arm 22 is pivotably connected to the hinge shaft 14. As a result, the first crank arm 21 and the second crank arm 22 are disposed to be able to open and close in the horizontal direction at the same height. Further, the connection piece 22f is extended forward to form a second protruding piece 22b, and the first protruding piece 21b and the second protruding piece 22b are disposed substantially in parallel with each other with the hinge shaft 14 interposed therebetween.

  The base end portion is attached to the second projection piece 22b between the first projection piece 21b and the second projection piece 22b, and the tip end portion protrudes outward from the first projection piece 21b and is orthogonal to the hinge shaft 14 An externally threaded member 24 is provided. A coil spring 25 (biasing means of the present invention) for biasing the crank arms 21 and 22 in the opening direction is provided on the male screw member 24 disposed between the first projecting piece 21b and the second projecting piece 22b. A female screw piece 26 is provided, which is engaged with the male screw member 24 at the tip of the male screw member 24 protruding from the first projecting piece 21b to operate both crank arms 21 and 22 in the closing direction (the clamp of the present invention Means are provided.

  The first crank 21c and the second crank 22c extend horizontally from the tips of the first projecting piece 21b and the second projecting piece 22b, and are bent in opposing V-shapes, respectively. When the container 31 is held, the cranks 21c and 22c both have a square shape that circumscribes the outer peripheral surface of the reaction container 31, and the first gripping pieces 21d and 21d on the first crank 21c side corresponding to the sides of the square. The first flange pieces 21e and 21e and the second flange pieces 22h and 22h extend horizontally outward at the upper edge portions of the second grip pieces 22g and 22g on the second crank portion 22c side. Are formed in a curved manner, and the contact portion with the reaction container 31 is a curved surface. In addition, a space E1 is formed between the first crank 21c and the second crank 22c, and at a portion corresponding to the apex of the square, a bent metal plate is bent so as to be elastically deformable. The portions 21 f and 22 i are respectively formed.

  When holding the reaction container 31 by the sample container supporting device 11 formed as described above and disposing and fixing the reaction container 31 in the constant temperature water tank 41, as shown in FIG. The neck portion of the reaction vessel 31 is deformed from the space E1 provided between the tip of the first crank portion 21c and the second crank portion 22c while the bending portions 21f and 22i are elastically deformed, and the first crank portion 21c and the second crank portion 22c is inserted inside, and the flange portion 31a provided on the outer periphery of the upper opening of the reaction vessel 31 is placed on each of the flange pieces 21e and 22h. Subsequently, the opening of the first crank arm 21 and the second crank arm 22 is adjusted by rotating the female screw piece 26, and the neck portion of the reaction container 31 is gripped by the first crank portion 21c and the second crank portion 22c. .

  On the other hand, after attaching the support rod member 15 to a stand arranged near the constant temperature water tank 41 and arranging the reaction container 31 in the constant temperature water tank 41, loosen the piece 16b of the hinge shaft holding member 16 to pivot the hinge shaft 14 The free position in the mounting hole 18, the position of the hinge shaft 14 in the vertical direction and the amount of rotation about the axis of the hinge shaft 14 are adjusted, and the position of the reaction container 31 in the constant temperature water bath 41 is adjusted; In a state where the reaction container 31 is disposed at a predetermined position, the piece member 16b is tightened to fix the hinge shaft 14 and the reaction container 31 is fixed.

  The sample container support device 11 of the present embodiment is formed as described above, so that the position of the hinge shaft 14 in the vertical direction or the position of the hinge shaft 14 can be determined by the hinge shaft holding member 16 disposed near the reaction container 31. Since the amount of rotation about the axis can be adjusted, the position at which the reaction container 31 is fixed can be easily adjusted at a position near the reaction container 31 gripped by the clamp unit 12. In addition, since the hinge shaft holding member 16 is provided on the distal end side of the support bar member 15, the circumference of the stand for supporting the support bar member 15 can be made compact, and the stand can be arranged in a narrow space. Can.

  Furthermore, the reaction container 31 elastically deforms the bent portions 21f and 22i from the space portion E1 formed between the tip end portions of both crank portions 21c and 22c, and the inner side of the first crank portion 21c and the second crank portion 22c. The reaction vessel 31 can be easily inserted into the inside of both the cranks 21c and 22c, because it can be inserted into the inside of the cranks 21c and 22c from above the cranks 21c and 22c. In a state in which flange pieces 31a of reaction container 31 are received by flange pieces 21e and 22h, by rotating female screw piece 26, the neck portion of reaction container 31 is gripped easily and surely by both crank parts 21c and 22c. It can be done.

  Further, since the flange portion 21a of the reaction container 31 can be received by the flange pieces 21e and 22h to hold the reaction container 31, a strong gripping force is not required for both crank portions 21c and 22c. The reaction container 31 can be reliably gripped by the two crank arms 21 and 22 formed in the above, and the cost can be reduced, and it is necessary to attach a flexible material such as resin or rubber to the grip surface. It is possible to use it under high temperature because it does not exist.

  Furthermore, since the support member 13 is formed in an L shape by the hinge shaft 14 disposed in the vertical direction and the support rod member 15 in the horizontal direction, the temperature of the support member 13 is adjusted by adjusting the position of the hinge shaft 14 The reaction container 31 can be favorably disposed in the water tank 41, and the amount of heat medium in the constant temperature water tank 41 can be reduced.

  In addition, the sample container support apparatus 11 of this invention can be used not only as what fixes a reaction container like the above-mentioned embodiment but as a support apparatus of various sample containers, such as a flask and a beaker. Further, the crank portion is not limited to one having a square shape when the outer peripheral surface of the sample container is held by both crank portions, and may be a polygonal shape such as a hexagonal shape or an octagonal shape, or a shape close to a circle. Furthermore, the support rod member is not limited to one that supports the base end portion on the stand, but the base end portion may be attached to the main body of an experimental machine such as a thermostatic water tank, and the structure on the base end portion side is optional.

DESCRIPTION OF SYMBOLS 11 ... Sample container support apparatus, 12 ... clamp part, 13 ... support member, 14 ... hinge axis | shaft, 15 ... support rod member, 16 ... hinge shaft holding member, 16a ... male screw member, 16b ... piece member, 17 ... large diameter member , 18: shaft mounting hole, 19: female screw hole, 20: retaining clip, 21: first crank arm, 21a: first mounting portion, 21b: first projecting piece, 21c: first crank portion, 21d: first Grip piece, 21e: first flange piece, 21f: bent portion, 22: second crank arm, 22a: second attachment portion, 22b: second projecting piece, 22c: second crank portion, 22d: shaft insertion hole, 22e ... Hinge insertion piece, 22f ... connection piece, 22g ... second grip piece, 22h ... second flange piece, 22i ... bent portion, 23 ... screw, 24 ... male screw member, 25 ... coil spring, 26 ... female screw piece, 31 ... Reaction vessel, 31a ... f Nji part, 41 ... a constant temperature water bath

Claims (3)

A sample container support apparatus comprising: a clamp portion for supporting a sample container having a flange projecting at the periphery of an upper opening; and a support portion for supporting the clamp portion,
The support portion includes a hinge shaft arranged in the vertical direction, with the axis rotatable and movable up and down to hold the center of the hinge shaft, the hinge shaft to restrict the rotation and vertical movement of the hinge shaft A horizontal support bar member having a hinge shaft holding member provided with a fixing means for fixing the
The clamp portion has a pair of crank arms formed by bending a strip-shaped metal plate,
The base end of one crank arm is fixed to the lower end of the hinge shaft, and the base end of the other crank arm is rotatably mounted on the lower end of the hinge shaft, whereby both crank arms are fixed. Are formed horizontally at the same height and can be opened and closed,
At the base of both crank arms, biasing means for biasing both crank arms in the opening direction and tightening means for operating both crank arms in the closing direction are provided.
Both crank arms have a polygonal shape that circumscribes the outer peripheral surface of the sample container when the outer peripheral surface of the sample container is held by both crank arms, and the upper edge of the crank arm in a portion corresponding to a plurality of sides of the polygonal shape A flange receiving piece extending horizontally outward is formed in each of the portions, and a strip-like metal plate is elastically deformed in portions corresponding to a plurality of apexes of the polygonal shape excluding the tip end portion of the crank arm A sample container supporting device characterized in that bent portions which can be bent are respectively formed.   The sample container support device according to claim 1, wherein the polygonal shape is a square shape. The fixing means includes a large diameter member attached to the tip of the support bar member and having a diameter larger than that of the support bar member.
  The large diameter member is formed in a direction perpendicular to the shaft mounting hole, which is formed perpendicularly to the axis of the support rod member, and the outer surface of the large diameter member and the shaft mounting hole And an open screw hole,
  The hinge shaft holding member has a screw member screwed into the screw hole.
The sample container support device according to claim 1 or 2, wherein

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